题目内容
| 求未知数x. X+40=65 | X-38=570 |
| X×6=156 | 256÷X=64. |
X+40=65,
X+40-40=65-40,
X=25;
X-38=570,
X-38+38=570+38,
X=608;
X×6=156,
X×6÷6=156÷6,
X=26;
256÷X=64,
256÷X×X=64×X,
64X=256,
64X÷64=256÷64,
X=4.
X+40-40=65-40,
X=25;
X-38=570,
X-38+38=570+38,
X=608;
X×6=156,
X×6÷6=156÷6,
X=26;
256÷X=64,
256÷X×X=64×X,
64X=256,
64X÷64=256÷64,
X=4.
练习册系列答案
相关题目